With the new firmware, the iPhone's biceps have never been bigger. Spotlight Search is a powerful, industry-leading tool. And functions like Find My iPhoneâ€”for paying MobileMe subscribers onlyâ€”will surely become standard practice in the mobile-connected world of the future. It's just a shame that most other improvements feel like defensive maneuvers rather than a true watershed software revolutionâ€”most of this stuff should have been here already. Now that the phone's critics should be mostly silenced, we're interested to see where Apple goes from here. Let me guess: Multitasking?